RAR archive of 112 KB for board 10211-1, whose number follows the Wistron scheme. Contents are not described in the name, nor are brand or model, but the size fits a boardview file better than a full schematic. Extract and identify the file, then load any layout into OpenBoardView, FlexBV or similar software to locate parts and test points. Neighbouring numbers like 10210-1 are different boards, so confirm the exact marking on your PCB first.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
7-ZipWinRARThe Unarchiver (macOS)